baber/WOPTO huggingface dataset:
Patent GB-1240667-A (GB)
Title: Method of recovering potassium chloride from a brine or like solution
IPC: B01D9/00
Filed: 1968-06-27
Abstract: 1,240,667. Recovering KCI from well brine. GARRETT RESEARCH & DEVELOPMENT CO. Inc. 27 June, 1968 [2 May, 1968], No. 30734/68. Heading C1A. [Also in Division E1] Potassium chloride is recovered from a NaCl/KCl brine by cooling said brine by indirect heat exchange with a cooling fluid to form a KCl slurry, further cooling the slurry to crystallize KCl therefrom, and separating the KCl, the remaining depleted brine being used as the cooling fluid in the indirect heat exchange step. In the preferred process (see Fig. 1), KCl is obtained by solution mining A, the brine produced being cooled in the heat exchanger B, the atmospheric crystallizer C and the refrigerative crystallizer D to - 23‹ to - 4‹ C. and the KCl separated therefrom. A heat exchange crystallizer and an atmospheric crystallizer are described (see Figs. 2-5, not shown; also in Division B1). The solvent used in solution mining may comprise at least part of the depleted brine; the said brine may be cooled to deposit part of its NaCl content, or a portion of the brine may be diluted with water, before use. The heat exchange cooling of the well brine is preferably under reduced pressure to - 21‹ to - 1‹ C. Magnesium chloride may be added to the solvent to regulate the KCl dissolution. NaCl may be recovered from the discarded portion of the depleted brine at K, F or N. The KCl/Brine slurry may be stored in underground cavities from which it may be recovered using an ultrasonic device.
Patent GB-813424-A (GB)
Title: Improvements in and relating to electrical connector assemblies
IPC: H01R12/72
Filed: 1957-10-01
Abstract: 813,424. Two-part couplings. UNITEDCARR FASTENER CORPORATION. Oct. 1, 1957 [Oct. 8, 1956], No. 30751/57. Class 38 (1). A socket connector for use with a printed circuit panel 12 comprises an insulating body 16 formed with channels 20 having apertured bases and recessed walls. Located in each of the apertures is a contact 18 comprising a retaining portion 28 from which extends a pair of resilient legs 30 carrying laterallyextending contact portions 32 at their free ends which portions are inclined towards each other. The walls of a pair of recesses bear on the outer surfaces of the contact portions as shown in Fig. 1, so as to urge the lateral extremities of the contact portions into abutment, the insertion therebetween of the panel 12 causing them to flex apart by torsional flexing of the legs.
Patent GB-449291-A (GB)
Title: Improvements in and relating to vehicle roofs
IPC: B62D29/00
Filed: 1935-11-07
Abstract: 449,291. Vehicle hoods. RYNER, H., 8, The Avenue, Surbiton, Surrey. Nov. 7, 1935, No. 30792. [Class 108 (i)] [See also Group IX] A vehicle roof comprises a cover of widemeshed asbestos cloth, woven from ironcontaining asbestos, and an upper cover of ordinary canvas, both being detachable and centrally divided with the division in one cover at right angles to that in the other. The covers are each bulged over metal bridges to give vaulting to the roof, and the two halves of each can be drawn aside by pulleys to give airing to the car. They roll over four removable rustless steel poles encircling the top of the car. Disclaiming reference is made to Specifications 17488/97, [Class 142], 357,864, [Group IX], and 432,699.
Patent GB-430979-A (GB)
Title: Improvements in or relating to road surfacing and like material
IPC: E01C19/10
Filed: 1934-07-11
Abstract: Relates to material for surfacing roads, roofs, &c. of the type consisting of particles of aggregate coated with matrix-e.g. bitumen-and then mixed with aggregate of smaller particle size. According to the invention the matrix is sufficiently soft to be the equivalent of bitumen having a penetration greater than 350. The matrix may be tar, resinous and asphaltic materials, or petroleum or rosin distillation residues.  The aggregate may be limestone, granite, slag, or clinker.  In an example " 1/8 inch to dust" limestone is put through a 20 mesh sieve.  The material retained on the screen is heated to 150 DEG  F., treated with asphaltic or creosote oil, and mixed with 400-penetration bitumen at 210 to 250 DEG  F.-i.e. flowable.  The fines passing through the screen are then mixed in cold.  The quantity of fines added equals that of the coarse aggregate.  The bitumen used amounts to 6 per cent by weight of the total (coarse and fine) aggregate. Specifications 290,725, [Class 22], and 375,953 are referred to.
Patent GB-747745-A (GB)
Title: Improvements relating to tatting shuttles
Inventor: SANDERS NORMAN THOMAS
IPC: D04C1/00
Filed: 1953-11-07
Abstract: 747,745. Tatting. NEEDLE INDUSTRIES, Ltd. Nov. 8,1954 [Nov. 7, 1953], No. 30869/53. Class 74 (1). A tatting shuttle comprises two resilient flange members 10, 11, pointed and touching at their ends, spaced apart in their central region, to accommodate a core on which thread is wound and provided with longitudinal stiffening ribs or flutes 12. The core is provided by two opposed hollow bosses 16, 17, on the flange members, secured at their touching faces 18 and being, in cross-section, longer than they are wide. The flutes may decrease in depth towards the pointed ends of the flanges. Specification 747,746 is referred to.
Patent GB-865982-A (GB)
Title: Improvements in surgical halters
Inventor: WILLIAMS UNWIN
IPC: A61F5/04
Filed: 1958-09-26
Abstract: 865,982. Surgical tension apparatus. WILLIAMS & CO. Ltd., U. Oct. 30, 1959 [Sept. 26, 1958], No. 30890/58. Class 81 (2). A surgical head halter comprises a chin support 1 and an occiput band 8 which are interconnected on each side by a pair of straps 4 which are under tension in use and a pair of side straps 18, the ends of the occiput band being connected by sling straps 11 to support a suspension means. The chin support is connected by rivets 3 to tension straps 4 having holes 5. The side portions of the occiput band also have holes 10. Studs 6, having cap nuts 7, selectively pass through the holes 10, 5 to adjustably interconnect the face straps 4 and the occiput band. Sling straps 11 are also adjustably connected to the occiput band at a selected pair of holes 10. Side straps 18 adjustably interconnect the occiput band and the chin support and on each side form a triangle with a face strap and a portion of the occiput band. The sling straps 11 are suspended by D-rings 14 from hooks 17 at the ends of a looped spacer bar 5. The chin support and the occiput band may be padded with foam plastic. The occiput band, face straps and sling straps are made of synthetic plastic, aluminium or brass, the side straps being made of synthetic plastic.
Patent GB-1021972-A (GB)
Title: Method of producing filaments of acrylonitrile polymers
IPC: D01F6/18
Filed: 1964-08-04
Abstract: 1,021,972. Semi-melt spinning polyacrylonitrile filaments. JAPAN EXLAN CO. Ltd. Aug. 4, 1964 [July 24, 1963], No. 30891/64. Heading B5B. A mixture of 30-60% by weight of a polymer containing a major proportion of acrylonitrile and 70-40% by weight of an aqueous solution containing more than 35% of an inorganic salt base on the weight of the solution, which solution is a solvent for the polymer at the spinning temperature is heated to obtain a melt which has a viscosity sufficiently low to render the melt spinnable, the melt is extruded through a spinning nozzle under pressure and at the melting temperature into an inert atmosphere to form continuous filaments, the filaments are drawn and solidified while they pass through the inert atmosphere such as air, the solidified filaments are washed to remove the inorganic salt, and then stretched at a temperature higher than the second order transition temperature of the polymer. The polymer may be an acrylonitrile homopolymer or a copolymer of acrylonitrile with preferably not more than 15% by weight of another monomer such as vinylpyridine, methacrylonitrile, vinyl chloride, vinyl acetate or styrene. The salt may be a chloride, bromide, iodide, thiocyanate, nitrate or perchlorate. Zinc chloride or an alkali metal thiocyanate are preferred. The heating of the mixture of polymer and salt solution to reduce its consistency sufficiently to render it spinnable is preferably effected under sufficient pressure to prevent vaporization of the water in the mixture. The filament may be jet stretched between the spinning nozzle and the collecting means at a velocity at least twice to five times the jet velocity used in the extrusion. The thermal stretching of the filaments after the removal of the salt therefrom may be effected at a draw ratio of 2 to 10 while they are passed through hot water, steam or heated air at a temperature of preferably 80‹ to 200‹ C. After this stretching step the filaments may be relaxed in water at 90‹ to 100‹ C., steam at 100‹ to 130‹ C. or air at 100‹ to 200‹ C.
Patent GB-762923-A (GB)
Title: Strip material feeding control device
IPC: G03B19/18
Filed: 1954-10-26
Abstract: 762,923. Feeding webs. RADIO CORPORATION OF AMERICA. Oct. 26, 1954 [Nov. 9, 1953], No. 30903/54. Class 100(1). [Also in Group XX] A strip-feeding device, particularly for a machine wherein data is recorded as a pattern of light variations on photographic film which pattern is transferred to another light-sensitive medium to provide a usable copy, comprises a differential gear having two inputs the drives for which can be selectively coupled thereto so that the output corresponds to the length or number of sections of strip to be fed. As shown a strip of film 60 to be reproduced by advancing it a predetermined number of frames and then quickly pulling it back is driven by sprockets 64. 66 on shafts 68, 70 geared to the output shaft 18 of a differential arrangement 10. The inputs to 'the differential 10 comprise shafts 26, 28 having worm gears 22, 24 co-operating with worm wheels 12, 14 which are fixed to opposed bevel gears 82, 84 of the differential. The gears 82, 84 are freely mounted on the shaft 18 which is rotated by a cage 16 including opposed bevel gears 80 meshing with the gears 82, 84. The shaft 18 is then driven at half the algebraic sum of the motion of the input gears 82, 84. The shafts 26, 28 are driven by motors 30, 32 through spring clutches 38, 40 operated by solenoids 50, 52. In operation, if it is desired to advance the film six frames, say, pull it back and repeat the operation four times, a selection and timing circuit 58 is preset with the number of frames to be scanned and the number of times the scan is to be repeated. The circuit 58 then causes a control circuit 54 to actuate the solenoid 50 so that the motor 30 is operatively connected by clutch 38 to the shaft 26 and the film advanced six frames, e.g. one frame for each revolution of the shaft 26. The circuit 54 counts the number of revolutions of shaft 26 and after counting the number required to advance the film six frames disengages the solenoid 50 to disengage the clutch 38 and initiate action of a control circuit 56 to energize the solenoid 52 to engage clutch 40 so as to couple the motor 32 to the shaft 28 and cause the film to be pulled back six frames. The circuit 58 ensures that the sequence is repeated the desired number of times, e.g. four. The film pull-back is made rapid by making the motor 32 run at a high speed relatively to that of the motor 30. The device may be employed to provide two-speed or intermittent movement in one direction.
Patent GB-343111-A (GB)
Title: Improvements in tobacco feeding mechanism for cigarettemaking machines
IPC: A24C5/39
Filed: 1929-10-11
Abstract: 343,111. Cigarette-making machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co.; 511, 5th Avenue, New York, U.S.A.). Oct. 11, 1929, No. 30907. [Class 130.] In tobacco feeding-mechanism for high-speed continuous-rod machines, in which the tobacco is showered downwards through a feed shoot 28 to the feed channel FC along which the cigarette wrapper travels, without substantial narrowing of the shower in the direction of travel of the wrapper, movable means within the feed shoot is arranged and driven to impart to the tobacco a movement in the direction of travel of the wrapper. As shown, the movable means is a rotating helix 207 extending lengthwise of the feed-shoot 28. Tobacco from the feed drum 17 is thrown by a picker roll 25 on a delivery belt 200 and falls on a small feed drum 205, from which it is thrown by a picker roll 26 on the helix 207. Above the feed drum 205 is a compression roller 208. The picker roll 25 throws the tobacco against spaced baffle plates 204, permitting free passage of portions of the tobacco and deflecting other portions thereof in order to produce a more uniform layer of tobacco on the delivery belt 200, as described in Specification 343,035. The mass of tobacco in the hopper is intermittently pressed against the continuously rotating feed drum 17 by means of a carded conveyer belt 148 forming the hopper floor, having rearwardly inclined teeth and travelling intermittently towards the drum, as described in Specification 343,036. The feed drum 17 is driven continuously from the shaft 36 by means of worm gearing 180, 181, a shaft 179, worm gearing 177, 178, and a gear 175 meshing with an internal gear 174. The tobacco is compacted on the drum 17 by tampers 29 and levelled by oscillating rods 32 on a shaft 33. The tampers 29 are mounted on arms 30 on a shaft 31 oscillated from a crank 82 on the shaft 84 of a sprocket wheel 93. This is driven by a chain 94 from a sprocket wheel on a shaft 171 driven from the shaft 52 and carrying a slowly moving and coarsely carded feed drum 172 located between converging walls 173. A surplus-removing drum 18 and a compensating drum 19 are driven by belt gearing from a shaft 195 driven from the shaft 179 through worm gearing 193 &c. Dust is collected from the tobacco by means of suction pipes 223, 224 at the ends of the hopper 10, opposite the spaces between the drum 19 and the picker roll 25, and a pipe 225 having a funnelled head embracing the space between the picker roll 26 and the propeller 207.
Patent GB-810244-A (GB)
Title: An improved bung housing for attachment to metal drums or containers
Inventor: MACKENZIE ALEXANDER ROLF
IPC: B65D39/08
Filed: 1956-10-11
Abstract: 810,244. Bunghole bushes. PAYTER & CO. Ltd., E. C. Oct. 7, 1957 [Oct.11, 1956], No. 30944/56. Class 125(3). A bush for the bunghole of a metal drum consists of a tapped metal annulus 3, for the reception of a screw bung, having a flange 5 provided on its underside with integral dependant studs 6 which pass through corresponding apertures 7b in the wall 7 of the drum and are enlarged or headed to secure the bush to the drum the underside of the flange 5 and/or the surface of the drum being coated with an adhesive such as an epoxy resin to form a liquid tight seal. The flange 5 may have on its underside grooves 5a, 5b to assist the flow of adhesive and a shoulder 3a will accommodate a crown closure.
Patent GB-262773-A (GB)
Title: Improvements in or relating to machines for printing addresses
IPC: B41L47/46
Filed: 1926-12-07
Abstract: 262,773. Beauregard, E. Heuze-. Dec. 7, 1926. Addressing-machines; stencilling. - An addressing-machine comprises an inking-device arranged in a frame 3, which is reciprocated horizontally by means of a handle 4 so as to slide in guides in a frame 1 carrying a hopper 28 for a stack of stencil-cards and carrying also a receptacle 37 into which the cards are discharged. The address-cards are detached one at a time from the bottom of the stack and are advanced in succession to printing position adjacent to an aperture 38 for the envelopes &c. to be addressed by means of a reciprocating feed-block 27 connected by a rod 25 to the frame 3. Ink is applied through the stencils by a flat-sided roller 14, Fig. 3, provided at one end with a similarly shaped toothed wheel 15. The arrangement is such that, at the end of the movement of the frame 3 to the left, the wheel 15 meets an incline 23 and is slightly rotated, such that, on the return movement, the teeth mesh with a rack 21, and the roller 14 is rotated and printing is effected. The frame 1 is mounted on trunnions 29, and, at the end of the movement of the frame 3 to the left, the handle 4 is pressed down to depress the adjacent end of the frame 1 against spring action. The frame 1 is retained in this position during the printing stroke by means of locking-levers 30, which are moved by springs into the position shown in Fig. 1 when the frame 1 is rocked about the pivots 29, and are knocked out of the locking position at the end of each printing stroke by a stop 35 acting through a spring-pressed rod 34. Inking-apparatus.-Ink is supplied through an aperture 6 to a compartment 5 in the upper part of the frame 3 and drips through a valve 8 on to a pad-roller 10 pressed against a roller 13, which spreads the ink on the roller 14. The aperture 6 is closed by a slidable cover. Printing multiple impressions from one card. The rod 25 is hooked on to a stud 24 on the frame 3 so that it may be disengaged to interrupt the feed of the cards, a stop being also moved into the path of the card in printing position.
Patent GB-247706-A (GB)
Title: An instrument for continuously indicating or recording tensile and compressive strains
IPC: G01N3/06
Filed: 1924-12-29
Abstract: 247,706. Taylor, J. L. Dec. 29, 1924. Linear - dimension gauges. - Comprises an extensometer in which a spring blade is subjected to either the compressive or tensile strain to be measured and arms secured to the end of the blade move angularly relative to each other to effect an indication or record. The spring blade c is initially bent and arranged between the ends of two longitudinal members a, b arranged within a tubular guide d formed with oppositely arranged longitudinal slots. The member a is fixed to the tube while the member b slides without turning in the tube and is made variable in length by making it in two screwed lengths connected by a turnbuckle f. Loclmuts f<2> serve to secure the lengths in any adjusted position. The end of the tube receiving the member a is threaded to receive an adjustable screw a which forms a fine adjustment for the length of the device. The inner ends of the members a, b may be formed with hardened anvils grooved to receive the ends of the spring blade. To these ends are secured arms g, h to the former of which is pivoted a scale plate i which is engaged by the end of the latter arm which forms an index. In a modification, a graduated disc is pivoted to the end of the arm g adapted to be rotated continuously or intermittently and a curve traced by the end of the arm h. For calibrating the scale plate, the spring c together with the attached arms are taken out and placed in a similar instrument in which the tube is fitted with a micrometer screw instead of the part a.
Patent GB-1195584-A (GB)
Title: Electrodialysis of Sugar Phosphorylation Reaction Solutions
IPC: B01D61/44
Filed: 1967-07-06
Abstract: 1,195,584. Electro-dialysis of sugar phosphorylation reaction solutions. STAUFFER CHEMICAL CO. July 6, 1967 [Feb. 2, 1967], No. 31179/67. Heading C7B. A solution containing a calcium sugar phosphate, inorganic calcium phosphate and calcium chloride has the CaCl 2  separated from it by electro-dialysis. The calcium sugar phosphate may be derived from sucrose, galactose, arabinose, ribose, xylose, maltose, lactose, raffinose or glucose. The D.C. electro-dialyzing voltage may be continuous, intermittent or pulsed. As shown, the solution is prepared at 20, clarified at 24 (e.g. in a centrifuge), electro-dialyzed at 30, and the product dried at 50 (e.g. by a spray drier). The electro-dialysis zone 30 comprises alternate anion and cation membranes 36, 38 separated by spacer means (not shown). Solution to be purified from CaCl 2  is supplied via line 26 and aqueous dilute CaCl 2  solution is supplied via lines 28 and 32. In operation, Ca and Cl ions pass from the phosphate solution into the CaCl 2  solution which becomes more concentrated and is passed to waste. The electrodialysis may be operated batch wise or continuously and product may be recycled from line 46 to 26. In the Example, known membrane materials are specified and the anode and cathode are of platinized Ta and Hastelloy-C respectively. "Hastelloy" is a Registered Trade Mark. A gradually decreasing current and voltage are used, viz. 13‹5 to 0À90 amps and 15 to 9À8 volts. The temperature of the feed liquor is maintained between 99 and 114‹ F.
Patent GB-805772-A (GB)
Title: Improvements relating to stationary induction electrical apparatus
IPC: H01F27/32
Filed: 1956-10-12
Abstract: 805,772. Inductors and transformers. GENERAL ELECTRIC CO. Oct. 12, 1956 [Oct. 12, 1955], No. 31192/56. Class 38 (2). In static induction apparatus convex shields 28, 45, 51 are provided to minimize the danger of electric breakdown between various parts of the apparatus. As shown, a transformer having a core leg 30 is provided with a L.V. winding 32 and a H.V. winding 39 of disc coils separated by insulation and provided with ducts to allow the passage of halogenated dielectric fluids such as askarel, SF 6 , C 3 F 8 , C 4 F 10 . Shield 28 is of dish shape and is positioned below a yoke of the core; shield 51 forms a ring at the upper end of the L.V. winding and shield 45 is a hollow ring of metallised tape surrounding the uppermost coil of the H.V. winding and covered with insulating tape 49. Cylinders 34, 35, 37 of insulating material are provided between the windings. Baffles and spacers between the windings are provided to control the flow of fluid as described in Specification 675,744.
Patent GB-669163-A (GB)
Title: Improvements in method and apparatus for reshaping metal tubes
IPC: B21C37/29
Filed: 1949-12-06
Abstract: 669,163. Stamping. SEEBER, R. R. Dec. 6, 1949 [Dec. 8, 1948], No. 31226/49. Class 83 (iv). In a method of re-shaping a metal tube by applying pressure to the end of the tube and to a plastic filler therein, one portion of the tube being closely embraced by a corresponding portion of a die and the other portion of the tube being open to a shaping cavity in the die, the pressures are separately applied to the tube end and to the filler in such a manner that the end of the tube and the end of the filler move at different rates. The rates of movement of the tube and of the end of the filler may be such that the change of surface area of that portion of the tube within the die cavity corresponds with the rate of feed of the filler thereinto. One of the pressures may be applied both to the tube end and to a portion of the end of the filler at such a rate of movement of the tube end as to correspond with the increasing surface area of that portion of the tube within the cavity of the die. A metal tube 1 filled with a plastic filler 2 such as lead, Woods metal or a similar alloy is placed in a die formed with a spherical cavity 4 and pressure is applied axially to both ends of the tube 1 and of the filler 2 by plungers 7, 8 and 9, 10. The two members of a pair of plungers approach each other at the same speed but the speeds of the different pairs depend upon the increase in surface area of the expanding part of the tube 1 and the volume of filler 2 required as the tube 1 takes up the shape of cavity 4. Arrangements operating with opposed plungers and with a single set of plungers arranged at one end of the tube are described for producing T-shaped and sphericallyended articles. In the arrangement for producing T-shaped articles shown in Fig. 10 plungers 24, 25 are hydraulically operated by passing a fluid through pipes 37, 36 to exert a pressure on pistons 34, 31. Valves in pipes 36, 37 control the rate of fluid flow into cylinders 30, 33 and hence the rate and amount of forward movement of plungers 25, 24. Springs 32, 35 return the pistons 31, 34 to their normal inoperative position when the valves in pipes 36, 37 are closed and valves in the fluid return pipes 38, 39 are open. Specifications 440,601 and 457,370 are referred to.